The lunate bone or semilunar bone is a carpal bone situated in the center of the proximal row of the carpus (wrist). {See diagram below}
Lunate is situated between the lateral scaphoid bone and medial triquetral bone. .
The name derives from the Latin luna which means “moon”, the lunate bone looks semi-similar to a crescent moon.
Carpal Bones - Distal and Proximal Rows Proximal: A=Scaphoid, B=Lunate, C=Triquetral, D=Pisiform Distal: E=Trapezium, F=Trapezoid, G=Capitate, H=Hamate
The superior surface, convex and smooth, articulates with the radius.
The inferior surface is deeply concave and articulates with the head of the capitate, and, by a long, narrow facet with the hamate.
l
Left Lunate Bone
The dorsal and palmar surfaces are rough, for the attachment of ligaments.
The lateral surface articulates with the scaphoid.
The medial surface is marked by a smooth, quadrilateral facet, for articulation with the triangular bone (triquetral).
Popularity: 2% [?]
[...] is on the ulnar side of the hand and articulates connects with the pisiform, hamate, and lunate bones. It is the 3rd most commonly fractured carpal bone.</p> Left Triquetral [...]